main.h

基于RC500射频卡读写模块的程序设计

#include "REG51CC03.h"
#define uchar                   unsigned char
#define uint                    unsigned int
#define ulong                   unsigned long
#define i24c64	0xa0
#define i8563	0xa2
#define FALSE			0
#define TRUE 			1

/*注：89c51的晶振频率为12MHz*/
/***********液晶显示器接口引脚定义***************/
sbit	RS=P2^7;               /*RS控制信号*/  
sbit	RW=P2^6;               /*R/W控制信号*/ 
sbit	E=P2^5;	              /*使能信号*/
sbit	CS1=P2^4;              /*CS1控制信号*/
sbit	CS2=P2^3;               /*CS2控制信号*/
sbit	RST=P2^2;	           /*RST清零控制信号*/
sfr 	Data=0x80;				/*数据口*/


sbit CLK=P1^6;
sbit DAT=P1^7;


#define	littlebroad 	1

sbit    RC500RST        	= P3^5; 
sbit    RC500_CS         	= P3^4;
sbit    _alarm			= P3^3; 
sbit	SCL			=P1^7;
sbit	SDA			=P1^6;

#ifdef __SRC
 #define EXTERN
#else
 #define EXTERN		       	extern
#endif
#ifdef __RC500

#if littlebroad
EXTERN unsigned char xdata ini _at_ 0x3f00;    
#else
EXTERN unsigned char xdata ini _at_ 0x7f00;    
#endif      
#endif

#define ON			0
#define OFF			1


#define TOGGLE_WD()  		WDTRST=0x1e;	WDTPRG=0xe1


                            

#define	ACK1			0x3a
#define	ACK			0x3e
#define NACK			0x3f
#define OKK		0x3c	
#define NO		0x3d

#define	KEYA		00	
#define	KEYB		01
#define	WRITE		01
#define	READ		0


#define	OK	0
#define NOK	1